▎ 摘　　要

NOVELTY - The material has a vanadium peroxide microspheres containing layered crystals as lithium ion transport channels inside, on the periphery of the vanadium peroxide microspheres. The graphene conducts the internal electric field of the electrode is compounded. An ion transport electrode material that forms a deionized atmosphere. The diameter of the microsphere is 500 nm-1 μm. The mass ratio of the microspheres to the graphene powder is 10: 0.5-3. The microspheres are provided of an orthorhombic crystal structure. The hydrothermal reaction is carried out on the mixed solution of oxalic acid and the obtained product to obtain a precipitate. The precipitate is annealed to obtain V 2 O 5 Microspheres. USE - Ion migration electrode material for removing ion atmosphere used in positive electrode material for a lithium ion battery (all claimed). ADVANTAGE - The lithium ion electrode material is designed by material microstructure, improving influence of lithium ion peripheral ion atmosphere in solution system in lithium ion migration process, improving lithium ion ion migration rate, improving battery performance, and shows high cycling stability and good crystallization characteristics. The high-conductivity graphene outside the V2O5 microspheres can effectively conduct the internal electric field of the electrode, promoting the rapid migration of lithium ions from one V2 O5 micro-sphere to another microsphere under the action of the graphene conductive electric field, which greatly improves the migration rate of the lithium ions, and improves the performance of lithium-ion batteries. The lithium ions in the material enter the inner part of V2 o 5 micro spheres when migrating in the electrolyte, the linear cavities provide free movement space for the DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing ion migration electrode material with removed ion atmosphere; and (2) a positive electrode material for a lithium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a preparation method of the graphene composite material. (Drawing includes non-English language text).